From 71678d6a3bf984eab057db0959c327112a658b81 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Sun, 29 Dec 2019 13:40:23 +0200 Subject: [PATCH] mlxsw: spectrum: Use dedicated policer for VRRP packets Currently, VRRP packets and packets that hit exceptions during routing (e.g., MTU error) are policed using the same policer towards the CPU. This means, for example, that misconfiguration of the MTU on a routed interface can prevent VRRP packets from reaching the CPU, which in turn can cause the VRRP daemon to assume it is the Master router. Fix this by using a dedicated policer for VRRP packets. Fixes: a8c583fef259 ("mlxsw: spectrum: Add VRRP traps") Signed-off-by: Ido Schimmel Reported-by: Alex Veber Tested-by: Alex Veber Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/reg.h | 1 + drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 9 +++++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h index 5294a1622643e..af30e8a766820 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -5472,6 +5472,7 @@ enum mlxsw_reg_htgt_trap_group { MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR, MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0, MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1, + MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP, __MLXSW_REG_HTGT_TRAP_GROUP_MAX, MLXSW_REG_HTGT_TRAP_GROUP_MAX = __MLXSW_REG_HTGT_TRAP_GROUP_MAX - 1 diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 556dca328bb51..f7fd5e8fbf96f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -4542,8 +4542,8 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = { MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, ROUTER_EXP, false), MLXSW_SP_RXL_MARK(IPIP_DECAP_ERROR, TRAP_TO_CPU, ROUTER_EXP, false), MLXSW_SP_RXL_MARK(DECAP_ECN0, TRAP_TO_CPU, ROUTER_EXP, false), - MLXSW_SP_RXL_MARK(IPV4_VRRP, TRAP_TO_CPU, ROUTER_EXP, false), - MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, ROUTER_EXP, false), + MLXSW_SP_RXL_MARK(IPV4_VRRP, TRAP_TO_CPU, VRRP, false), + MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, VRRP, false), /* PKT Sample trap */ MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU, false, SP_IP2ME, DISCARD), @@ -4626,6 +4626,10 @@ static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core) rate = 19 * 1024; burst_size = 12; break; + case MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP: + rate = 360; + burst_size = 7; + break; default: continue; } @@ -4665,6 +4669,7 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core) case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF: case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM: case MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0: + case MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP: priority = 5; tc = 5; break; -- 2.39.5